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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 FEBS+Open+Bio
2018 ; 8
(4
): 664-670
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Obesity-associated glomerular inflammation increases albuminuria without renal
histological changes
#MMPMID29632818
Mima A
; Yasuzawa T
; King GL
; Ueshima S
FEBS Open Bio
2018[Apr]; 8
(4
): 664-670
PMID29632818
show ga
Obesity is one of risk factors for chronic kidney disease (CKD), but the precise
mechanism involved is unclear. This study characterizes the effect of
obesity-induced glomerular inflammation, oxidative stress, and albuminuria in
obese rats. Glomerular samples were collected from fatty (ZF) and lean (ZL)
Zucker rats. After 2 months of feeding, body weight and albuminuria were
significantly increased in ZF rats when compared to ZL rats. Expression of the
inflammatory markers TNF-? and CCR2 was significantly increased in the glomeruli
of ZF rats. However, expression of IL-6 mRNA was not increased. Analysis of renal
pathology showed no glomerular expansion. As inflammatory and oxidative stress
markers are associated with NF-?B, we evaluated whether NF-?B activation was
increased in the glomeruli of mice on a high-fat diet. Immunohistochemistry
showed increased NF-?B activation in the glomeruli when transgenic mice
overexpressing an NF-?B-dependent enhanced green fluorescent protein were fed
with a high-fat diet. These results suggest that obesity of only 2 months
duration can cause albuminuria, due to increased inflammation or oxidative
stress, but may not be long enough to develop renal pathological changes.